topic badge

4.03 Representing information using matrices

Interactive practice questions

Answer the following questions.

a

What is the definition of a matrix?

A rectangular array of only whole numbers.

A

A triangular array of real numbers or symbols.

B

A rectangular array of real numbers, symbols, and expressions.

C

A rectangular array of only real numbers.

D
b

What is a square matrix?

A matrix that contains the same number of rows as columns.

A

A matrix that contains more columns than rows.

B

A matrix that contains more rows than columns.

C
Easy
< 1min
Is the array
    $2$2 $3$3    
    $5$5 $-5$5    
    $7$7 $-8$8    
a matrix?
Easy
< 1min
Is the array
    $-1$1 $-6$6    
    $-5$5 $8$8    
    $-2$2 $\ $     
a matrix?
Easy
< 1min

How many elements does a matrix with $4$4 rows and $5$5 columns contain?

Easy
< 1min
Sign up to access Practice Questions
Get full access to our content with a Mathspace account

Outcomes

ACMGM013

use matrices for storing and displaying information that can be presented in rows and columns; for example, databases, links in social or road networks

ACMGM014

recognise different types of matrices (row, column, square, zero, identity) and determine their size

What is Mathspace

About Mathspace